Composite ecological treatment method of sewage for artificial wet land and its system

The present invention is a sewage composite wetland ecological processing method and apparatus, established according to the prior surrounding terrain sewage channel, sedimentation and regulating the hydrolysis tank, and to build a multi-stage farmed wetlands, breeding wetland filled culture substrate and grow plants, may be removed COD, BOD 5 , SS and pathogenic microorganisms, ammonia nitrogen wastewater and nitration, and then the fish farming plants and have eventually purified by stabilization. Influent and effluent of each facility the way they use gravity flow, energy consumption is rarely required. Since the present invention to set the sewage treatment facility based on existing topography of the environment, the use of plant breeding for the sewage treatment work, stable and reliable, built according to the terrain, infrastructure investment, good effect, the water of high quality especially low operating costs, does not require any energy and pharmaceutical costs, the sewage treatment facilities in order to constitute an ecological wastewater treatment and resources into the theme of environmental protection garden.